Water → Methyl 1-isobutyl-7-[4-(2-propoxyethoxy)phenyl]-2,3-dihydro-1-benzazepine-4-carboxylate

HRID 587037Notes

Reaction equation

HRID 587037 reaction equation
Br[C:2]1[CH:3]=[CH:4][C:5]2[N:11]([CH2:12][CH:13]([CH3:15])[CH3:14])[CH2:10][CH2:9][C:8]([C:16]([O:18][CH3:19])=[O:17])=[CH:7][C:6]=2[CH:20]=1.B([O-])([O-])O[C:23]1[CH:28]=[CH:27][C:26]([O:29][CH2:30][CH2:31][O:32][CH2:33][CH2:34][CH3:35])=[CH:25][CH:24]=1.C(=O)([O-])[O-].[K+].[K+].O>C1(C)C=CC=CC=1.C(O)C.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:12]([N:11]1[C:5]2[CH:4]=[CH:3][C:2]([C:23]3[CH:28]=[CH:27][C:26]([O:29][CH2:30][CH2:31][O:32][CH2:33][CH2:34][CH3:35])=[CH:25][CH:24]=3)=[CH:20][C:6]=2[CH:7]=[C:8]([C:16]([O:18][CH3:19])=[O:17])[CH2:9][CH2:10]1)[CH:13]([CH3:15])[CH3:14]

Participants

7

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 22328913Methyl 7-bromo-1-isobutyl-2,3-dihydro-1-benzazepine-4-carboxylateHCID 867568144-(2-Propoxyethoxy)phenyl borate

Product 1

HCID 22329296Methyl 1-isobutyl-7-[4-(2-propoxyethoxy)phenyl]-2,3-dihydro-1-benzazepine-4-carboxylateYield 67.9%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 86587398Ethanol toluene waterSolvent

Procedure

In toluene/ethanol/water (=10/1/1, 41 ml) was dissolved methyl 7-bromo-1-isobutyl-2,3-dihydro-1-benzazepine-4-carboxylate (0.90 g). To the solution were added 4-(2-propoxyethoxy)phenyl borate (0.72 g) and potassium carbonate (0.81 g) and the mixture was stirred for 30 minutes under argon atmosphere. To the mixture was added tetrakistriphenylphosphinepalladium (123 mg) and the mixture was heated to reflux for 14 hours. After cooling to room temperature, the solution was added to water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried with magnesium sulfate. The solvent was removed under reduced pressure, and the resulting residue was purified with silica gel column chromatography (hexane/ethyl acetate=8/1) to give methyl 1-isobutyl-7-[4-(2-propoxyethoxy)phenyl]-2,3-dihydro-1-benzazepine-4-carboxylate (0.79 g).

Workup

  1. temperaturethe mixture was heated
  2. temperatureto reflux for 14 hours
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe extract was washed with saturated brine
  5. dry with materialdried with magnesium sulfate
  6. customThe solvent was removed under reduced pressure
  7. customthe resulting residue was purified with silica gel column chromatography (hexane/ethyl acetate=8/1)

Sources & evidence

ORD record
ord-0a1d144b11de420f8ba0ec523acbc51a
Source dataset
uspto-grants-2005_08
Patent number
US06936602B1

Reaction notes

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